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Paper Abstract and Keywords
Presentation 2014-12-20 16:25
Subjective evaluation of constant perceived hues in the UHDTV wide-color-gamut using natural images with cyanic colors
Yukiko Iwasaki, Yukihiro Nishida (NHK) IMQ2014-22
Abstract (in Japanese) (See Japanese page) 
(in English) In a colorimetric conversion from the UHDTV wide-color gamut to the HDTV gamut without changing hue, it is desirable that perceived hue corresponds to that predicted by a color model used for the conversion. We previously measured perceived hue lines in the CIELAB color space by a subjective evaluation using color patches and found non-linearity in the cyan region. We conducted another subjective evaluation using natural images containing cyan colors in the hue range of 180° to 280° and found required adjustment of hue angles when converting those images to the HDTV gamut. We also investigated a color gamut mapping algorithm that keeps perceived hues based on the experiment result.
Keyword (in Japanese) (See Japanese page) 
(in English) Wide color gamut / constant perceived hue / UHDTV / color-gamut conversion/mapping / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 386, IMQ2014-22, pp. 33-38, Dec. 2014.
Paper # IMQ2014-22 
Date of Issue 2014-12-13 (IMQ) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF IMQ2014-22

Conference Information
Committee IMQ  
Conference Date 2014-12-20 - 2014-12-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Medical Imaging and Image Media Quality 
Paper Information
Registration To IMQ 
Conference Code 2014-12-IMQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Subjective evaluation of constant perceived hues in the UHDTV wide-color-gamut using natural images with cyanic colors 
Sub Title (in English)  
Keyword(1) Wide color gamut  
Keyword(2) constant perceived hue  
Keyword(3) UHDTV  
Keyword(4) color-gamut conversion/mapping  
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1st Author's Name Yukiko Iwasaki  
1st Author's Affiliation Japan Broadcasting Corporation (NHK)
2nd Author's Name Yukihiro Nishida  
2nd Author's Affiliation Japan Broadcasting Corporation (NHK)
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Speaker Author-1 
Date Time 2014-12-20 16:25:00 
Presentation Time 25 minutes 
Registration for IMQ 
Paper # IMQ2014-22 
Volume (vol) vol.114 
Number (no) no.386 
Page pp.33-38 
#Pages 6 
Date of Issue 2014-12-13 (IMQ) 

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